A new omnidirectional shear horizontal wave transducer using face-shear   (d(24)) piezoelectric ring array

doi:10.1016/j.ultras.2016.10.011

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	A new omnidirectional shear horizontal wave transducer using face-shear (d(24)) piezoelectric ring array
	Miao, Hongchen ; Huan, Qiang ; Wang, Qiangzhong ; Li, Faxin
刊名	ULTRASONICS
	2017
关键词	Shear horizontal waves Guided waves Face-shear piezoelectrics Non-destructive testing (NDT) Structural health monitoring (SHM) MAGNETOSTRICTIVE PATCH TRANSDUCER PLATE STRUCTURES METALLIC PLATE LAMB WAVES INSPECTION EMAT TOMOGRAPHY EXCITATION
DOI	10.1016/j.ultras.2016.10.011
英文摘要	The non-dispersive fundamental shear horizontal (SH0) wave in plate-like structures is of practical importance in non-destructive testing (NDT) and structural health monitoring (SHM). Theoretically, an omnidirectional SH0 transducer phased array system can be used to inspect defects in a large plate in the similar manner to the phased array transducers used in medical B-scan ultrasonics. However, very few omnidirectional SH0 transducers have been proposed so far. In this work, an omnidirectional SH0 wave piezoelectric transducer (OSH-PT) was proposed, which consists of a ring array of twelve face shear (d(24)) trapezoidal PZT elements. Each PZT element can produce face-shear deformation under applied voltage, resulting in circumferential shear deformation in the OSH-PT and omnidirectional SH0 waves in the hosting plate. Both finite element simulations and experiments were conducted to examine the performance of the proposed OSH-PT. Experimental testing shows that the OSH-PT exhibits good omnidirectional properties, no matter it is used as a SH0 wave transmitter or a SH0 wave receiver. This work may greatly promote the applications of SH0 waves in NDT and SHM. (C) 2016 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [11422216, 11672003, 11521202]; SCI(E); PubMed; ARTICLE; 167-173; 74
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/457095]
专题	工学院
推荐引用方式 GB/T 7714	Miao, Hongchen,Huan, Qiang,Wang, Qiangzhong,et al. A new omnidirectional shear horizontal wave transducer using face-shear (d(24)) piezoelectric ring array[J]. ULTRASONICS,2017.
APA	Miao, Hongchen,Huan, Qiang,Wang, Qiangzhong,&Li, Faxin.(2017).A new omnidirectional shear horizontal wave transducer using face-shear (d(24)) piezoelectric ring array.ULTRASONICS.
MLA	Miao, Hongchen,et al."A new omnidirectional shear horizontal wave transducer using face-shear (d(24)) piezoelectric ring array".ULTRASONICS (2017).